Windmill attachment.



S. E. TWEEDY. WINDMILL ATTACHMENT. APPLICATION mm MAR. 22. m6.

1,21 1,643. Patented Jan. 9, 1917.

NVENTOR ATTORNEY STANLEY E. TWEEDY, OF TROY, IDAHO.

WINDMILL ATTACHMENT.

Specification of Letters Patent.

Patented J an. 9, 1917.

Application filed March 22, 1916. Serial No. 85,946.

To all whom it may concern:

Be it known that I, STANLEY E. TwnnnY, a citizen of the United .States, residing at Troy, in the county of Latah and State of Idaho, have invented certain new and useful Improvements in Vindmill Attachments, of which the following is a specification.

This invention relates to an attachment for wind-mills and the primary object is to provide a deflector for the wind whereby the blades of the wind-wheel will receive the force of the wind at the most advantageous point for imparting the greatest velocity to the wind-wheel.

A further object of this invention is the provision of an attachment for a wind-mill which consists of comparatively few parts and is simple in construction, but durable and well adapted to withstand the usage to which devices of this character are ordinarily subjected.

For a full description of the invention and the advantages and merits thereof, reference is to be had to the following description and the accompanying drawings, wherein is illustrated the preferred form of my invention, in which:

Figure 1 is a vertical section through the device showing it attached to a wind-wheel, and Fig. 2 is an end elevation showing the device detached.

It is well known in the operation of windmills that the wind-wheel receives its greatest power from the wind which strikes the blades of the wind-wheel at about the center of the blades and that the wind which is directed toward the hub or center of the windwheel is of comparatively little use in driving the wheel. The attachment therefore, is constructed to deflect the wind from the center line of the hub of the wheel toward the center of the blades thereof and consists of a cone-shaped deflector 1 which has the edge 2 mounted in a manner that will cause it to be positioned adjacent the center of the blades of the inner wheel. The device may be mounted upon any form of wind-wheels commonly used on wind-mills and the wheel illustrated in Fig. 1 is provided with a hub A having the spokes B radiating therefrom which carry the rim C and mounted upon the rim C is a plurality of blades D which receive the wind for imparting rotary motion to the shaft E of the wind-mill.

The rim C is provided with a plurality of apertures through which is extended the ends 3 of a plurality of brackets 4:, the brackets being constructed of strap-iron and having their ends 3 reduced and rounded for receiving screw threads whereby fastening nuts 5 may be screw threadly mounted upon the ends 3 for fastening the brackets 4 to the rim C of the inner wheel. Washers 6 are mounted upon the reduced ends 3 and bear against the inner periphery of the rim G of the wheel. The brackets are curved as at 7 and their free ends are se-' cured to the cone-shaped deflector 1 by means of rivets, bolts or other fastening means as indicated by the numeral 8. The brackets are braced against the cone by braces 9 which are bolted at one end to the bracket 4 and at the other ends to the cone 1. A closure 10 is provided for the open end of the cone-shaped deflector and apertures 11 are formed in the closure through which the braces and brackets are extended as shown by Fig. 1 0f the drawing.

The device rotates with the wheel and the wind which is directed toward the center of the wheel will be deflected by the cone-shaped deflector which will cause it to strike the blades at a point for causing the blades to receive the greatest power from the wind and from this construction it will be seen that a very slight wind, which otherwise would not be strong enough to cause the wheel to rotate, may be deflected toward the blades whereby the slight velocity of the wind may be directed to the mostadvantageous point of the driving blades of the wheel.

From the foregoing it will be observed that a very simple and durable attachment for wind-mills has been provided, the details of which embody the preferred form. I desire it to be understood however, that slight changes or modifications in the minor details of construction may be made without departing from the spirit of the invention or the scope of the claims hereunto appended.

I claim:

1. In an attachment for a wind mill, the said wind mill including a wind wheel having blades radially extending therefrom, a cone-shaped deflector mounted upon the wheel, the center of the deflector being in axial alinement with the said wheel, the said wheel carrying brackets projecting into the interior of the deflector and fastened to the inner surface thereof, the said brackets retaining the edge of the deflector in position adjacent the center of the said blades.

2. In an attachment for a Wind-mill, a Wind wheel having blades fastened to its periphery, brackets including strips having their ends fastened to the periphery of the wind wheel, a hollow conical deflector, the opposite ends of the said brackets being engaged and fastened to the interior of the said conical deflector, braces for the said brackets, the said brackets being curved outwardly from their point of contact with the wheel whereby the said conical deflector will be held in spaced relation to the said wheel.

3. In an attachment for awind-1nill, a plurality of brackets carried by the wind wheel, a cone-shaped deflector mounted upon the brackets and adapted to rotate with the wind wheel, the opening in the end of the said deflector being considerably larger than the diameter of the wind wheel, a closure for the end of the said deflector having apertures through which the said brackets are extended, and braces for the said brackets, the said closure also being provided with apertures for the reception of said braces.

4. In an attachment for a wind-mill, a wind wheel having a plurality of blades attached thereto, a cone-shaped deflector having its large end of greater diameter than the diameter of the said wind wheel, a closure for the end of the said deflector, means for connecting the said deflector to the said wind wheel whereby the said deflector will be rotated with the wind wheel, the said means including braces projecting through the said closure and fastened to the inner wall of the said deflector.

5. In an attachment for a wind-mill, a deflector mounted in spaced relationto the wind wheel of the said wind-mill, a closure for the end of the deflector provided with a plurality ofapertures, brackets comprising strips having their ends fastened to the said deflector and projecting through the said openings, the outer ends of the said strips being curved and connected to the said wind wheel, and bracing elements'for preventing the collapsing of the said brackets, the longitudinal center line of the deflector being in alinement with the center line of the said wind wheel.

6. In an attachment for a wind-mill, .a plurality of brackets carried by the windwheel, a cone-shaped deflector mounted upon said brackets and having its center line positioned in a line with the horizontal center line of the wind-Wheel, braces fasten-edto said deflector and to the brackets, a closure for the end of said deflector and provided with apertures through which said brackets and said braces extend, said deflector having its edge positioned adjacent the center of the blades of said wind-wheel.

In testimony whereof I aflix my signature in presence of two witnesses.

STANLEY E. TWEEDYLA Witnesses:

ALFRED EKHoLM, W. S. Snvnims.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

